EP0344341B1 - Appareil de chauffage électrique à accumulation - Google Patents

Appareil de chauffage électrique à accumulation Download PDF

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Publication number
EP0344341B1
EP0344341B1 EP88108698A EP88108698A EP0344341B1 EP 0344341 B1 EP0344341 B1 EP 0344341B1 EP 88108698 A EP88108698 A EP 88108698A EP 88108698 A EP88108698 A EP 88108698A EP 0344341 B1 EP0344341 B1 EP 0344341B1
Authority
EP
European Patent Office
Prior art keywords
electric storage
fixation
heating apparatus
panel
cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88108698A
Other languages
German (de)
English (en)
Other versions
EP0344341A1 (fr
Inventor
Reinhard Ing. Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olsberger Huette Hermann Everken & Co GmbH
Original Assignee
Olsberger Huette Hermann Everken & Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olsberger Huette Hermann Everken & Co GmbH filed Critical Olsberger Huette Hermann Everken & Co GmbH
Priority to AT88108698T priority Critical patent/ATE68871T1/de
Priority to EP88108698A priority patent/EP0344341B1/fr
Priority to ES198888108698T priority patent/ES2027344T3/es
Priority to DE8888108698T priority patent/DE3865838D1/de
Publication of EP0344341A1 publication Critical patent/EP0344341A1/fr
Application granted granted Critical
Publication of EP0344341B1 publication Critical patent/EP0344341B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/16—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources
    • F24H15/164—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources where the price of the electric supply changes with time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/281—Input from user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
    • F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
    • F24H9/2078—Storage heaters

Definitions

  • the invention relates to an electric storage heater with a rectangular sheet-metal housing, in which heat storage blocks that can be heated by electrical resistance heating elements, at least one air that draws in air from the outside, blows through cavities in the heat storage blocks to a warm air outlet opening, and an electrical connection and switching arrangement are accommodated with the purpose of accessibility to the electrical connection and switching arrangement and the blower removable side walls and a detachably attached control box arranged in an opening of the front wall near a side wall, which can be removed and installed when the assigned side wall is removed.
  • An electric storage tile stove is already known (DE-U-1 925 896), in which a vertical side wall is designed as a door that can be secured in its closed position and covers the wiring space.
  • a vertical side wall is designed as a door that can be secured in its closed position and covers the wiring space.
  • the arrangement of hinges between the door and the rear wall is complex and also prevents the side wall from being removed.
  • one is sealed off from one of the side walls Switch room is provided, which is located in the housing and which contains a pre-assembly plate with switching and connection devices, which lies in a plane parallel to the adjacent side wall of the housing.
  • the preassembly plate can be displaced or rotated within the above-mentioned level in such a way that it can be at least partially pulled out of the space surrounded by the housing. To do this, a removable cover must be provided on the front.
  • the aim of the present invention is to provide an electric storage heater of the type mentioned, in which the side wall, behind which there are possibly to be repaired and / or exchanged electrical or electronic components, can be removed in the simplest way without dismantling other wall parts of the electric storage heater and also to be able to be securely fastened again without problems, the fastening means being largely concealed, that is to say arranged so that they are not visible from the outside.
  • the invention provides that at least the side wall assigned to the control box is provided on its rear side with a perpendicularly arranged bores arranged at regular intervals and at right angles, which laterally engages around the rear wall of the sheet metal housing, so that it is from behind on the rear wall is present, with complementary heads projecting from the rear wall engaging in the bores, that fastening bores are provided laterally in the front region of the side wall in question for fastening the side wall to the chassis by means of screws and that the side walls have a front angled portion which is on the rear surface of the Fit the front wall of the sheet metal housing.
  • the heads are formed on head screws screwed into the rear wall.
  • a fastening screw in the lower area can be dispensed with if the front bend is preferably inserted in the lower area on the chassis and engages behind the (molded) spring attached there, which detachably removes the side wall from being pulled out laterally holds. In this case it is sufficient if there is preferably only a single fastening hole in the front region of the side wall.
  • the (shaped) spring provided in the lower area is preferably designed as a suitably horizontally extending sheet metal strip which engages behind the front bend in such a way that the rear bend against the rear wall and thus over those located there Heads is pulled.
  • An advantageous construction of the invention is characterized in that behind each mounting hole there is a preferably substantially vertically extending, chassis-fixed mounting rail, which is provided with a counter-threading means for the screws or with a hole for the free passage of the mounting screw to a mounting bracket located behind the mounting rail the top wall, which carries the counter-thread means, is provided.
  • the invention can be used particularly advantageously in an embodiment which is characterized in that different, in particular two different, but the same front surface dimensions and the same fastening means can optionally be used in the opening of the front wall.
  • a charge controller preferably accessible from the front, must be provided, by means of which the amount of heat that is to be stored in the heat storage blocks can be adjusted by hand.
  • the room air thermostats have also been installed directly in the electric storage heaters, the thermocouple being arranged in the suction area of the fan in order to determine the temperature of the surrounding air there. It is desirable and expedient to arrange the manually adjustable controller of the room air thermostat in the same control box where the charge controller is located.
  • switches are often provided in electric storage heaters, by means of which a heat charge can also be started at the time of day in the event that the heat stored by charging during the night time is consumed. This switch should also be on the front surface of the control box.
  • control box which has only one charge controller, to be quickly and easily replaced by a control box, which also has a room temperature controller and, if necessary, a day current heating switch or other switch .
  • the fastening means consist of an angle rail fastened to the side of the control box, which is preferably detachably fastened to the same fastening rail as the counter-thread means or the bore for receiving the screw from the side of the assigned side wall which has been removed.
  • the control box located with its front surface in the opening of the front wall can be easily screwed to or detached from the fastening rail after opening the associated side wall, with threaded holes in the angled rail expediently being aligned with screw-through bores in the fastening rail .
  • Another advantageous embodiment is characterized in that cable bushings are mounted at a distance in front of the rear wall on a support plate fixed to the chassis and running parallel to the rear wall and that the rear wall, in alignment with the cable bushings, has significantly larger cable bushing openings in diameter, the cable bushings preferably extending into the cable bushing openings and being flush with the rear wall.
  • This embodiment makes it possible to push the storage heater closer to a wall because no parts of the cable duct protrude at the rear. Damage to the inserted cables due to sharp edges is effectively avoided by extending the cable bushings into the cable bushing openings in the rear wall.
  • this support plate also performs other functions such as the inclusion of switching elements or the like This results in an optimal pre-assembly.
  • control line can serve to emit heat from another electric storage heater by means of one and the same room thermostat.
  • An external thermostat connection can be provided if the temperature is to take over control at a location remote from the storage heater.
  • the invention provides according to a further development that the cable bushings and the Cable entry openings are arranged on the same side as the control box.
  • FIG. 1 there is a warm air outlet opening 15 extending across the entire width in the lower region of the front wall 20 of an electric storage heater Electric storage heater completed by a decreasing cover wall 24.
  • a rectangular opening 19 is provided in the front wall 20, into which a control box 21 is inserted from behind, which carries a charge control button 43 on its front surface and a room temperature control button 44 below it.
  • the buttons 43, 44 are connected to corresponding regulators for the amount of heat or the room temperature, for example formed by potentiometers, which are not shown in detail in the drawing and are located inside the regulating box 21.
  • a switch 45 is arranged in the front surface of the control box 21, which is used to switch from night-time heating to day-time heating. This switch 45 can be actuated when the amount of heat stored during the night is consumed and heat is to be charged with daytime electricity.
  • the front wall 20 extends up to the vertical side edges 46 of the electric storage heater, since - as will be described in detail below - the side walls are concealed behind the front wall 20.
  • a control box 21 ' can be installed in the rectangular opening 19 of the front wall 20, in the front surface of which only a charge control button 43 is installed.
  • a control box 21 'with a charge control button 43 must be provided in any case, while the room temperature control button 44 and the switch 45 of Fig. 1 are only provided optionally.
  • heat storage blocks 11 with vertical cavities 14 are arranged between the front wall 20 and a rear wall 23, through which electrical resistance heating elements 12 are passed.
  • the heat storage blocks 11 are surrounded on all sides by adequate thermal insulation 47.
  • blowers 13 next to the heat storage blocks 11, which suck in air from the outside through the side suction openings 18 indicated in FIG. 6 and guide them through the cavities 14 in a manner not shown for discharging the heat storage blocks, from where the heated air reaches the warm air outlet opening 15 in a manner not shown in detail.
  • FIG. 6 there is a thermostat sensor part 53 for regulating the room temperature under the suction openings 18 and thus in the area of the sucked-in room air.
  • the electric storage heater described is completed by the same as the front and rear wall 20, 23 made of sheet metal side walls 17, which have a right-angled bend 17 'on their back, which according to FIGS. 3, 4 and 6 reach behind the rear wall 23 and rest against the rear wall 23 from behind.
  • the bends 17 'vertically one above the other at regular intervals bores 22, which have complementary heads 25 of screws 26 screwed into the rear wall 23 (Fig. 3, 4). Furthermore, the side walls 17 have a front bend 30, which according to FIGS. 3 and 4 on the abut rear surface of the front wall 20.
  • the side walls 17 thus have only two simple right-angled bends, so that they can be shaped into the desired shape economically by simple bending. Multiple bends are not required according to the invention.
  • the side walls 17 are fastened by a fastening screw 29 (FIGS. 4, 6) provided at the top at the front, which is provided by a preferably countersunk fastening hole 27 provided there in the side wall 17 and by a fastening rail 32 on the right, behind it, in a vertically angled fastening rail Inner wall or on the chassis 28 (Fig. 4, 7) provided bore 41 are inserted to be screwed into a counter thread 33 of a mounting bracket 42 which is attached to the underside of the cover wall 24 and protrudes vertically downwards from there as far, that the counter-threaded bore 33 is aligned with the bores 27, 41.
  • the bore 41 in the chassis-fixed vertical fastening rail 32 (FIG. 7) serves at the same time for fastening or holding the cover wall 24 on the fastening rail 32 against removal upwards.
  • each side wall and the top wall 24 are firmly connected to the chassis 28 on the relevant side of the electric storage heater.
  • the fastening screws 25, which have the fastening heads 25 and are screwed into the rear wall, can in turn be used for fastening components arranged on the inside of the rear wall 23 or can only be screwed in blindly in order to serve for the rear holding of the side walls 17.
  • 1, 3 and 6 is in the lower side part of the chassis near the front wall 20 and the side wall 17 a (shape) spring 31, between which and the rear of the front wall 20, a narrow gap 48 remains, in which 3 can be resiliently pressed in according to FIG. 3, so that the front angled portion 30 is spring-loaded at this point. Since the flat and horizontal spring 31 is relatively stiff in the direction away from the front wall 20, the side wall 17 is also pulled slightly forward in the lower region, so that the rear bend 17 'in secure contact with the rear surface of the Rear wall 23 comes and thus a perfect engagement of the screw heads 25 in the holes 22 is ensured.
  • an angle rail 35 is arranged on the back of the control box 21 as a fastening means 34, which protrudes laterally from the control box 21 in the direction of the associated side wall 17 and has two threaded bores 50 arranged one above the other, by means of which the angle rail 35 is attached to the vertically near the side wall 17 and is fastened parallel to this fastening rail 32 in that fastening screws 52 indicated schematically in FIGS. 7 and 8 are passed through slot-like through bores 51 (FIG. 7) of the fastening rail 32.
  • Both the dimensions of the front surface and the fastening means 34 are identical for both types of control boxes 21 and 21 ', so that either a control box 21 or a control box 21' can be installed in the storage heater (Fig. 1 and 2).
  • a bend 37 of a chassis 28, which is provided parallel to the rear wall 23 and close to it, has bores for receiving three cable bushings 36, through which cables 39, 40 are led from the outside into the interior of the electric storage heater.
  • cable feedthrough openings 38 are provided in the rear wall, into which the cable feedthroughs 36 extend with all-round play so far that they are flush with the rear surface of the rear wall 23.
  • the entire electrical connection and switching arrangement 16 is located in an adjacent to the heat storage blocks 11 immediately behind the one side wall 17 provided space 16 ', which is sufficiently insulated from the heat of the heat storage blocks 11. If necessary, however, further parts of the electrical connection and switching arrangement can also be provided on the opposite side behind the other side wall 17, where there is also a space extending up to the heat insulation 47, among other things. is arranged to accommodate the second fan 13.
  • the operation of the electric storage heater according to the invention is as follows: If a repair or replacement is to be carried out in the area of the electrical connection and switching arrangement 16 or the control box 21 is to be carried out another control box 21 'to be replaced, only the screw 29 provided at the top front on the right side wall 17 needs to be loosened. The front edge of the side wall in question can then be pulled off to the side, as indicated by dash-two-dot lines in FIG. 3, the front bend 30 being released from the jamming behind the (shaped) spring 31. The side wall 17 pivots like a hinge around the contact edge of the rear bend 17 'on the rear wall 23, and the bores 22 begin to stand out from the screw heads 25.
  • the side wall can be moved somewhat backwards in the direction of the arrow in FIG. 3, whereupon the bores 22 come completely out of engagement with the screw heads 25 and the side wall 17 is freely removed to the side can be.
  • control box 21 If the control box 21 is to be replaced, the screws 52 (FIG. 7) are loosened, so that the control box 21 can be moved rearward out of the opening 19 and can be removed laterally past the fastening rail 32. The insertion of another control box 21 'is done in reverse order.
  • control box 21 accordinging to FIG. 2 is present in an electric storage heater and is replaced by a control box 21 having more switching options, which includes 16 further switching and control devices within the electrical connection and switching arrangement, which after acceptance the side wall can be easily installed.
  • the side wall 17 is fastened again in that the rear bend with the bores 22 is brought over the screw heads 25 (FIG. 3) and is then pivoted in a hinge-like manner in the lateral direction in the direction of the dashed arrow, whereby finally the front bend 30 is clamped behind the (form) spring 31 or between the spring 31 and the front wall 20.
  • the screw 29 has to be inserted into the fastening bore 27, passed through the bore 41 and finally screwed into the mating thread 33 of the fastening bracket 42 in order to finally fix the side wall 17, the cover wall 24 also being secured against lifting upwards at the same time .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Baking, Grill, Roasting (AREA)

Claims (10)

  1. Appareil de chauffage électrique à accumulation, comprenant un boîtier en tôle de forme parallélépipédique dans lequel sont montés des blocs accumulateurs de chaleur (11) qui peuvent être chauffés par des éléments chauffants résistifs (12), au moins un ventilateur (13) qui fait circuler de l'air aspiré à l'extérieur à travers des compartiments creux (14) dans les blocs accumulateurs de chaleur (11) jusqu'à une ouverture de sortie d'air chaud, et une unité de raccordement et de commutation électrique (16), le boîtier comportant des parois latérales amovibles (17) dans le but d'accéder à l'unité de raccordement et de commutation électrique (16) et au ventilateur (13), ainsi qu'un coffret de régulation (21, 21') fixé de manière démontable dans une ouverture (19) de la paroi avant (20) au voisinage d'une paroi latérale (17), ce coffret de régulation pouvant être monté et démonté lorsque la paroi latérale associée est démontée, caractérisé en ce que la paroi latérale (17) associée au coffret de régulation au moins comprend un retour (17') en équerre du côté arrière, ce retour comportant des trous (22) régulièrement espacés verticalement les uns au dessus des autres et entourant latéralement la paroi arrière (23) du boîtier en tôle, de sorte qu'il engage la paroi arrière par l'arrière, et des têtes (25) en saillie depuis la paroi arrière (23) et complémentaires aux trous (22) s'engageant dans lesdits trous, en ce que des trous de fixation (27) sont prévus latéralement dans la région avant de la paroi latérale concernée pour la fixation de la paroi latérale sur le châssis (28) au moyen de vis (29), et en ce que les parois latérales (17) comprennent des rabats avant (30) qui sont appliqués contre la face arrière de la paroi avant (20).
  2. Appareil de chauffage électrique à accumulation selon la revendication 1, caractérisé en ce que les têtes (25) sont formées sur des vis à tête (26) vissées sur la paroi arrière.
  3. Appareil de chauffage électrique à accumulation selon la revendication 2, caractérisé en ce que le rabat avant (30) engage par l'arrière et de préférence dans la région inférieure un ressort (31) fixé au châssis (28), ledit ressort maintenant la paroi latérale (17) avec possibilité de relâchement contre une extraction latérale et fermement contre un déplacement vers l'arrière.
  4. Appareil de chauffage électrique à accumulation selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un unique trou de fixation latéral (27) dans la région avant de la paroi latérale (17) et de préférence en haut.
  5. Appareil de chauffage électrique à accumulation selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu derrière chaque trou de fixation (27) un rail de fixation (32) fixe par rapport au châssis et s'étendant de préférence généralement verticalement, ledit rail de fixation comportant des trous allongés (51) pour les vis (52) et un trou (41) pour le libre passage de la vis de fixation (29) vers une équerre de fixation (42) de la paroi de couvercle (24) qui se trouve derrière le rail de fixation (32) et qui porte des organes de vissage coopérants (33').
  6. Appareil de chauffage électrique à accumulation selon l'une des revendications précédentes, caractérisé en ce que l'on peut mettre en place dans l'ouverture (19) de la paroi avant (20) des coffrets de régulation (21, 21') choisis parmi différents coffrets de régulation, en particulier deux coffrets de régulation différents, qui présentent cependant des mêmes dimensions de face frontale et des mêmes organes de fixation (34).
  7. Appareil de chauffage électrique à accumulation selon la revendication 6, caractérisé en ce que les organes de fixation (34) consistent en un rail en équerre (35) fixé latéralement sur le coffret de régulation (21, 21'), ledit rail étant de préférence fixé de manière amovible sur le même rail de fixation (32) dans lequel est ménagé le trou (41) de réception de la vis (29), et de préférence du côté de la paroi latérale associée enlevée, et en fait de préférence au moyen de vis de fixation (52) vissées dans des perçages taraudés (50) du rail en équerre (35) et traversant des trous de passage (51) du rail de fixation (32).
  8. Appareil de chauffage électrique à accumulation selon l'une des revendications précédentes, caractérisé en ce que des passages pour câbles (36) sont montés à distance en avant de la paroi arrière (23) sur une tôle porteuse (37) fixe par rapport au châssis et s'étendant parallèlement à la paroi arrière (23) et en ce que la paroi arrière (23) comporte des ouvertures de passage de câble (38) alignées avec les passages pour câbles (36) et d'un diamètre nettement plus élevé que ces derniers, lesdits passages pour câbles (36) pénétrant de préférence avec jeu de tous les côtés dans les ouvertures de passage pour câbles et étant en affleurement avec la paroi arrière (23).
  9. Appareil de chauffage électrique à accumulation selon la revendication 8, caractérisé en ce qu'il est prévu trois passages pour câbles (36) avec ouvertures de passage pour câbles (38) pour la traversée d'un câble de raccordement au réseau (39), d'un câble de raccordement à un thermostat extérieur (40) et, le cas échéant, d'un câble de commande.
  10. Appareil de chauffage électrique à accumulation selon la revendication 8 ou 9, caractérisé en ce que les passages pour câbles (36) et les ouvertures de passage pour câbles (38) sont agencées sur le même côté que le coffret de régulation (21, 21').
EP88108698A 1988-05-31 1988-05-31 Appareil de chauffage électrique à accumulation Expired - Lifetime EP0344341B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT88108698T ATE68871T1 (de) 1988-05-31 1988-05-31 Elektrospeicherheizgeraet.
EP88108698A EP0344341B1 (fr) 1988-05-31 1988-05-31 Appareil de chauffage électrique à accumulation
ES198888108698T ES2027344T3 (es) 1988-05-31 1988-05-31 Acumulador de calefaccion electrico.
DE8888108698T DE3865838D1 (de) 1988-05-31 1988-05-31 Elektrospeicherheizgeraet.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88108698A EP0344341B1 (fr) 1988-05-31 1988-05-31 Appareil de chauffage électrique à accumulation

Publications (2)

Publication Number Publication Date
EP0344341A1 EP0344341A1 (fr) 1989-12-06
EP0344341B1 true EP0344341B1 (fr) 1991-10-23

Family

ID=8199013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108698A Expired - Lifetime EP0344341B1 (fr) 1988-05-31 1988-05-31 Appareil de chauffage électrique à accumulation

Country Status (4)

Country Link
EP (1) EP0344341B1 (fr)
AT (1) ATE68871T1 (fr)
DE (1) DE3865838D1 (fr)
ES (1) ES2027344T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4338419A1 (de) * 1993-11-10 1995-05-11 Olsberg Hermann Everken Gmbh Elektrospeicherheizgerät
GB201804373D0 (en) 2018-03-19 2018-05-02 Trust Electric Heating Ltd Wall mountable electric heater with slim form factor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1964409U (de) * 1967-04-19 1967-07-20 Stiebel Werke G M B H & Co Dr Speicherheizgeraet.
CA1163296A (fr) * 1980-10-10 1984-03-06 L. Ronald Ofield Branchement facultatif sur dos de plinthe chauffante

Also Published As

Publication number Publication date
EP0344341A1 (fr) 1989-12-06
DE3865838D1 (de) 1991-11-28
ATE68871T1 (de) 1991-11-15
ES2027344T3 (es) 1992-06-01

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